參數資料
型號: MB90587
廠商: Fujitsu Limited
英文描述: Octal Bus Transceivers With 3-State Outputs 20-CFP -55 to 125
中文描述: 16位微控制器專有
文件頁數: 84/124頁
文件大?。?/td> 2638K
代理商: MB90587
MB90580B Series
84
(4) Power-on Reset
(V
CC
=
5.0 V
±
10%, V
SS
=
AV
SS
=
0.0 V, T
A
=
40
°
C to
+
85
°
C)
Value
Note : - VCC must be kept lower than 0.2 V before power-on.
- The above values are used for causing a power-on reset.
- If HST = “L”, be sure to turn the power supply on using the above values to cause a power-on reset whether
or not the power-on reset is required.
- Some registers in the device are initialized only upon a power-on reset. To initialize these registers, turn
the power supply using the above values.
Parameter
Symbol Pin name Condition
Unit
Remarks
Min.
Max.
Power supply rising time
t
R
V
CC
0.05
30
ms
Power supply cut-off time
t
OFF
V
CC
4
ms
Due to repeated
operations
V
CC
V
CC
3.0 V
V
SS
t
R
t
OFF
2.7 V
0.2 V
0.2 V
0.2 V
Sudden changes in the power supply voltage may cause a power-on reset.
To change the power supply voltage while the device is in operation, it is recom-
mended to raise the voltage smoothly to suppress fluctuations as shown below.
In this case, change the supply voltage with the PLL clock not used. If the volt-
age drop is 1 mV or fewer per second, however, you can use the PLL clock.
It is recommended to keep the
rising speed of the supply voltage
at 50 mV/ms or slower.
RAM data hold
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相關代理商/技術參數
參數描述
MB90587C 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
MB90587CA 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
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